Hydrophobic coatings from emulsion polymers

2001 ◽  
Vol 73 (1) ◽  
pp. 43-55 ◽  
Author(s):  
David R. Bassett
Keyword(s):  
Hydrophobic Coatings ◽  
Emulsion Polymers

scholarly journals Superhydrophobic Sands for the Preservation and Purification of Water

Coatings ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 151
Author(s):  
Yuyang Liu ◽  
Chang-Hwan Choi
Keyword(s):  
Water Surface ◽  
Particulate Material ◽  
Self Assembled Monolayer ◽  
Hydrophobic Coatings ◽  
Hydrophobic Coating ◽  
Evaporation Loss ◽  
Zno Nanocrystals ◽  
Sand Particles ◽  
Purification Of Water ◽  
Nanoscale Roughness

Sand, a cheap and naturally abundant particulate material, was modified with photocatalytic and hydrophobic coatings to reduce evaporation loss and facilitate the purification of water. The first-level photocatalytic coatings (TiO2 or ZnO nanocrystals) rendered nanoscale roughness on the surface of the sand. The additional second-level hydrophobic coating of a self-assembled monolayer of octyltrimethoxysilane (OTS) made the sand particles superhydrophobic because of the nanoscale roughness imposed by the nanocrystals. The superhydrophobic sand particles, floating on the free surface of water due to their superhydrophobicity, significantly reduced the evaporation loss of water by 60%–90% in comparison to an uncovered water surface. When the outer hydrophobic coatings are weathered or disengaged, the inner photocatalytic coatings become exposed to water. Then, the sand particles act as photocatalysts to degrade the contaminants in water under solar radiation.

Non-accumulative in the environment facile hydrophobic coatings based on branched siloxanes with perfluoroalkyl substituents

2021 ◽  
pp. 121910
Author(s):  
Petr Shkinev ◽  
Alina Evdokimova ◽  
Fedor V Drozdov ◽  
Lev L Gervits ◽  
Aziz M Muzafarov
Keyword(s):  
Hydrophobic Coatings

Nanoscale Mechanical and Tribological Properties of Plasma Nanotextured COP Surfaces with Hydrophobic Coatings

2015 ◽  
Vol 12 (11) ◽  
pp. 1271-1283 ◽  
Author(s):  
Dimitrios A. Dragatogiannis ◽  
Elias Koumoulos ◽  
Kosmas Ellinas ◽  
Angeliki Tserepi ◽  
Evangelos Gogolides ◽  
...  
Keyword(s):  
Tribological Properties ◽  
Hydrophobic Coatings ◽  
Mechanical And Tribological Properties

Corrosion Studies and Interfacial Bonding of Urea/Poly(dimethylsiloxane) Sol/Gel Hydrophobic Coatings on AA 2024 Aluminum Alloy

Langmuir ◽  
2007 ◽  
Vol 23 (10) ◽  
pp. 5505-5514 ◽  
Author(s):  
Mojca Fir ◽  
Boris Orel ◽  
Angela Šurca Vuk ◽  
Aljaž Vilčnik ◽  
Robi Ješe ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Sol Gel ◽  
Interfacial Bonding ◽  
2024 Aluminum Alloy ◽  
Hydrophobic Coatings ◽  
Corrosion Studies ◽  
Aa 2024

Artificial icing and AC flashover tests on glass insulators with silicone acrylate resin hydrophobic coatings

2016 ◽  
Vol 23 (2) ◽  
pp. 1038-1047 ◽  
Author(s):  
Jianlin Hu ◽  
Binhuan Lan ◽  
Ke Xu ◽  
Xingliang Jiang ◽  
Zhijin Zhang ◽  
...  
Keyword(s):  
Hydrophobic Coatings ◽  
Acrylate Resin ◽  
Silicone Acrylate

Effect of Irrigated Crop Rotation and Phosphorus Fertilizer-Manure on Soil Water Repellency of a Clay Loam Soil in Southern Alberta

2021 ◽  
Author(s):  
Jim J. Miller ◽  
Mallory Owen ◽  
Ben Ellert ◽  
Xueming Yang ◽  
Craig F. Drury ◽  
...  
Keyword(s):  
Soil Water ◽  
Water Repellency ◽  
Fertilizer Application ◽  
Clay Loam ◽  
P Fertilization ◽  
Soil Water Repellency ◽  
Hydrophobic Coatings ◽  
Southern Alberta ◽  
P Fertilizer ◽  
Loam Soil

Soil water repellency (SWR) was measured for a 28 yr field study under irrigation on a clay loam Dark Brown soil in southern Alberta. The objectives were to study the effect of legume-cereal crop rotations, feedlot manure, and phosphorus (P) fertilizer application on soil hydrophobicity (SH) and soil water repellency index (RI) under irrigation. Mean SH and RI were similar (P > 0.05) for a legume-cereal and cereal rotation, and were unaffected by P fertilization. However, P fertilization shifted the RI classification from slight to sub-critical. In contrast, SH was significantly greater for manured than non-manured treatments, while RI was unaffected. Soil organic carbon (SOC) concentration was significantly (P ≤ 0.05) correlated with SH (r=0.74), but not with RI (r=-0.17). This suggested a closer association between the quantity of SOC and quantity of hydrophobic compounds (SH method) compared to the hydrophobic coatings inhibiting infiltration of water (RI method). No significant correlation between SH and RI (r=-0.09) suggests that SH is not a good predictor of SWR using the RI method. Overall, manure application increased SH and P fertilization shifted the RI classification from slight to sub-critical. In contrast, legume-cereal rotations had no influence on SH and SWR using RI method compared to continuous cereal.

scholarly journals Hydrophobic Coatings for Corrosion Control of Aluminum Heat Exchangers

10.5772/67676 ◽  
2017 ◽  
Author(s):  
Alba Covelo ◽  
Carmina Menchaca ◽  
Miriam Flores ◽  
Pilar Rodríguez‐ Rojas ◽  
Miguel Hernandez‐Gallegos ◽  
...  
Keyword(s):  
Heat Exchangers ◽  
Corrosion Control ◽  
Hydrophobic Coatings

scholarly journals Controlling oil/water separation using oleophillic and hydrophobic coatings based on plasma technology

2020 ◽  
Vol 7 (3) ◽  
pp. 036411
Author(s):  
Anurag Agarwal ◽  
Soumyadeb Manna ◽  
Swaraj Nath ◽  
Kanhaya Sharma ◽  
Pubali Chaudhury ◽  
...  
Keyword(s):  
Plasma Technology ◽  
Water Separation ◽  
Hydrophobic Coatings ◽  
Oil Water Separation ◽  
Oil Water
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